@@ -611,7 +611,9 @@ impl std::str::FromStr for GutterType {
611 "spacer" => Ok(Self::Spacer),
611 "spacer" => Ok(Self::Spacer),
612 "line-numbers" => Ok(Self::LineNumbers),
612 "line-numbers" => Ok(Self::LineNumbers),
613 "diff" => Ok(Self::Diff),
613 "diff" => Ok(Self::Diff),
614− _ => anyhow::bail!("Gutter type can only be `diagnostics` or `line-numbers`."),
615+ "Gutter type can only be `diagnostics`, `spacer`, `line-numbers` or `diff`."